Application of Tendon With Z-Lengthening Technique.

Area of Science:

• Orthopedics
• Hand Surgery
• Reconstructive Surgery

Background:

• Tendon deficiency presents challenges in upper extremity repair and reconstruction.
• Existing methods like autografts and tendon transfers have donor site morbidity and limitations in multiple deficiencies.

Purpose of the Study:

• To introduce the tendon with z-lengthening (TWZL) technique as an alternative treatment for tendon injuries and nerve-related tendon transfers.
• To highlight the versatility and application of the TWZL technique in various upper extremity scenarios.

Main Methods:

• The TWZL technique involves longitudinal tendon splitting and distal reflection of a tendon limb.
• Suture augmentation is performed at the distal native tendon bridge site.
• The technique is applicable to flexor and extensor tendons, biceps/triceps injuries, and nerve injury reconstructions.

Main Results:

• The TWZL technique provides a novel approach to address tendon deficiencies.
• It offers a reconstructive option with potential benefits over traditional methods.
• An illustrative case example demonstrates its application.

Conclusions:

• The TWZL technique is a valuable alternative for complex tendon injuries and reconstructions in the upper extremity.
• Hand surgeons should consider this technique for challenging clinical conditions.
• It expands reconstructive possibilities, especially in cases of multiple tendon deficiencies.